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Use a large display with a G3 iBook at high resolution System
I recently bought the Dell 24" monitor for my PowerBook, which works great. However, I had a hard time getting it to work properly with my girlfriend's G3 iBook (933Mhz). The there is not enough video memory to drive both properly!

The only way to get a decent screen resolution is to install the screen spanning software, and then switch the iBook to display in 640x480 and at 256 colours. This will then enable the iBook to drive the Dell screen at 1920x1200 using millions of colours and have a steady picture.
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Use a large display with a G3 iBook at high resolution
Authored by: cloudless on Mar 27, '06 08:01:09AM

I have an iBook G4 and wondering if I can use it with a high reosolution external monitor too. I was going to buy a monitor but found that iBook's maximum output resolution is 1024x768 according to the specs. Is "Screen Spanning Doctor" the only method to use higher resolution on iBook?



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Use a large display with a G3 iBook at high resolution
Authored by: zpjet on Mar 27, '06 08:23:29AM

not only it is great method, it will also gives the possibility to "span" rather than "mirror". i've been using this method for almost three years with ibook g3 with great satisfaction - i was able to use the ibook as graphic designer tool, with documents on a large screen and palletes and dock on ibook's screen.

btw i set up friend's g4 ibook with a sony pro crt screen and its max resolution was about 2048 x 1572. it means he gets 400% extra of his ibook's screen!

screen span doctor was simply the best priceless freeware on my ibook ever. i'm sure you'll donate after a while.



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Use a large display with a G3 iBook at high resolution
Authored by: wilton on Mar 27, '06 08:54:45AM

As far as I know installing Screen Spanning software is the only way. I have installed this on several iBooks, and it has been fine. I have even heard of people using it on eMacs and it worked fine.



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Use a large display with a G3 iBook at high resolution
Authored by: rspeed on Mar 27, '06 08:33:24AM

It's worth noting that this is only an issue with the iBook G3s with 16 MB of VRAM. The last few models had 32 MB and don't require changing the settings for the built-in display.



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external display as primary output device?
Authored by: sjk on Mar 27, '06 06:38:07PM

Anyone here know if it's possible to configure an external monitor as the primary output device for system startup? If possible, the idea is to bypass the internal display if it ever fails for some reason. For example, you could "blind boot" the system into single-user mode, run a script to select the external monitor as the output device, and future reboots would use the external monitor instead of the internal display. This would allow use of the system without repairing the internal display, which is something I'd really like to do if/when the CRT on my wife's eMac eventually dies.



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external display as primary output device?
Authored by: Dragon76 on Mar 28, '06 10:02:55AM

There used to be a key combination for old Macs that you could use to start from an external display, but all I can find on google are the ones for Quadra AV machines to force using a TV as a monitor (cmd-opt-t-v) and to force an AV monitor to be recognised as one (cmd-opt-a-v). Maybe one of those might work.



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Easy
Authored by: VRic on Mar 30, '06 10:22:48AM
Anyone here know if it's possible to configure an external monitor as the primary output device for system startup?

First, what's wrong with the standard feature, which has been there for decades? Prefpane Monitors:Arrange: in the miniature representation of available monitors, drag the menu bar from one to another.

If you want to do it AFTER your main monitor dies, you can have SwitchRes installed and configured beforehand to present you with any number of choices or presets by right-clicking on the desktop (on the monitor that works).
SwitchRes screenshots

You can also assign a hotkey to open the Monitors prefpane or a script that opens it and drags it to the secondary monitor so that you won't have to grab it blindly.

If you're OK with the command line, you can also install cscreen and memorize its commands (since you wouldn't see the display if it's dead).
cscreen on macosxhints

Monitor settings being saved in PRAM and in a prefs file somewhere, you could also research ways to set it at boot time using Open Firmware, or switch between 2 preset prefs files using single user mode and reboot, or set the pref using the "defaults" command and reboot. But managing any of that without seing the CLI output would be needlessly hard.

What makes you so sure the built-in monitor will die anyway?



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Maybe I misinterpreted
Authored by: VRic on Mar 30, '06 10:37:49AM

Having re-read your question, it seems you want a way to route the display to a secondary monitor IF and AFTER the built-in one dies, but without having it connected by default in normal use.

The suggestions I made above work for that of course, but you could also:

- connect the monitor you would be using (preferably that one, as the system is likely to recognize it and may not treat another one the same)

- use the Monitors prefpane to set it as the main monitor

- shut down, disconnect the secondary monitor until needed

On subsequent reboots, the secondary monitor will be main if present, if not the OS will revert to the built-in one. The setting should remain until you make another change to the monitors prefs or zap the PRAM.



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Maybe I misinterpreted
Authored by: sjk on Mar 30, '06 08:03:22PM

I'll try temporarily making an external monitor the primary display, then detaching it and seeing if the internal monitor is used automatically. If that doesn't work I'll investigate your other suggestions (thanks!).

For starters, maybe it's enough to set output-device to screen1 (or other value) in Open Firmware; I'll check that OF variable and other things after making the external monitor primary. That mode wouldn't initially have to have optimal settings, just enough to see things and make adjustments afterwards. Hmm, just noticed "output-device-1 scca" in OF; I'll search for info about that.

I've never used a second monitor on my Macs or I'd probably already know more about this stuff by now.

I'm more than "OK" with the command line.

I'm not thinking the internal monitor will die, just wanting to be prepared with a less expensive option than getting it repaired or buying a new system. I want a safety net for hardware failures whenever possible.



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